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28331795 = 512744617
BaseRepresentation
bin110110000010…
…0111100010011
31222022101220202
41230010330103
524223104140
62451125415
7462546662
oct154047423
958271822
1028331795
1114aa1108
1295a386b
135b3c89b
143a96dd9
152749915
hex1b04f13

28331795 has 8 divisors (see below), whose sum is σ = 34266624. Its totient is φ = 22486464.

The previous prime is 28331783. The next prime is 28331803. The reversal of 28331795 is 59713382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-28331795 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21674 + ... + 22943.

It is an arithmetic number, because the mean of its divisors is an integer number (4283328).

Almost surely, 228331795 is an apocalyptic number.

28331795 is a deficient number, since it is larger than the sum of its proper divisors (5934829).

28331795 is a wasteful number, since it uses less digits than its factorization.

28331795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44749.

The product of its digits is 45360, while the sum is 38.

The square root of 28331795 is about 5322.7619710072. The cubic root of 28331795 is about 304.8536250065.

The spelling of 28331795 in words is "twenty-eight million, three hundred thirty-one thousand, seven hundred ninety-five".

Divisors: 1 5 127 635 44617 223085 5666359 28331795